Corrosion

Corrosion under insulation on stainless steel

Rupesh, S., Independent Consultant

Corrosion under insulation (CUI) is a severe form of localized external corrosion that occurs on stainless steel (SS) that has been insulated.

Continuous monitoring of creep in equipment

D’Antonio, F., Raffineria di Milazzo

In this article, the development of a customized program—designed by the author and used at Raffineria di Milazzo—for the continuous monitoring of creep in vessels and piping is explained.

Dual-mechanical seal arrangement for hot pump service

Zardynezhad, S., TurboTech Consulting Corp.

Selecting mechanical seals for hot services in an oil refinery or petrochemical plant is always a challenging task—and it is a task that needs careful attention, since the wrong seal selection can have a significant impact on pump reliability and availability.

Is coating required on stainless-steel components?

Kadikar, R., ITT Corp.

Stainless steel is a generic term used for a large group of corrosion-resistant alloys containing at least 10.5% chromium (Cr), and possibly containing other alloying elements like nickel (Ni), molybdenum (Mo), manganese (Mn) and nitrogen (N).

Quantum leap in chemical plant safety and reliability through mobile technology

Murugan, A., Fitiri; Pattabathula, V., SVP Chemical Plant Services

The human factor has played a significant role in chemical plant accidents and production loss incidents over the past 60 yr.

Stability evaluation of hot spots in the RDS process reactor

During the end-of-run (EOR) period of the authors’ company’s residue hydrodesulfurization (RDS) process in early February 2019, some hot spots occurred in the catalysts of the reactors.

Ensuring safety in dynamic chemical manufacturing environments

Knecht, S., ITT Goulds Pumps

As with all industries, chemical manufacturing is evolving in response to technical innovations, new customer requirements and increased global competition.

Improved measurement of water content in natural gas

Garza, A., Miller, S., Endress+Hauser

Consumers likely imagine natural gas as a stream of pure methane. Those who are closer to the energy industry know that methane is the major component, but there can easily be dozens of other substances making up a sizeable portion of the total volume.

Editorial Comment: Maintenance and reliability—A cornerstone of safe and efficient plant operation

Nichols, Lee, Hydrocarbon Processing Staff

Refineries and petrochemical plants are comprised of a series of crucial processes to produce transportation fuels, products and chemicals demanded by the global market. These processes consist of capital-intensive units that must be maintained to provide reliable performance. Failure to adequately maintain these assets can have a detrimental effect to not only operations and profit, but also to worker safety.

Understanding HCN in FCC: Formation, effects and mitigating options

Riva, S., BASF; Challis, S., Chalcat Consulting

In these challenging times, fluidized catalytic cracking units (FCCUs) aim to improve margins by processing poorer- or different-quality feeds, while maintaining good yield performance.